World Music Features 17 HippiesThere aren't 17 of them, there isn't a "hippie" in the bunch, and if there was a guide to becoming a successful band, they would probably break every single rule in it. Even so, 17 Hippies have become one of Germany's most popular and successful "roots" groups. Based in Berlin, the band has just released Heimlich, their first CD available in the U.S. By Chris Heim